Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Brownsburg: Harry Wendelken vs Borna Gojo | 100% |
| Completed Match | 100% |
| Brownsburg: Harry Wendelken vs Borna Gojo Set 2 Winner | 100% |
| Brownsburg: Harry Wendelken vs Borna Gojo Total Sets: O/U 2.5 | 100% |
| Brownsburg: Harry Wendelken vs Borna Gojo Set 2 O/U 8.5 | 100% |
| Brownsburg: Harry Wendelken vs Borna Gojo Set 1 O/U 8.5 | 100% |
| Brownsburg: Harry Wendelken vs Borna Gojo Match O/U 21.5 | 100% |
| Brownsburg: Harry Wendelken vs Borna Gojo Match O/U 22.5 | 100% |
| Brownsburg: Harry Wendelken vs Borna Gojo Match O/U 23.5 | 100% |
| Brownsburg: Harry Wendelken vs Borna Gojo Set 1 Winner | 0% |
| Brownsburg: Harry Wendelken vs Borna Gojo Set Handicap +/-1.5 | 0% |
| Brownsburg: Harry Wendelken vs Borna Gojo Set 2 O/U 9.5 | 0% |
| Brownsburg: Harry Wendelken vs Borna Gojo Set Handicap +/-1.5 | 0% |
| Brownsburg: Harry Wendelken vs Borna Gojo Set 1 O/U 9.5 | 0% |
| Brownsburg: Harry Wendelken vs Borna Gojo Set 2 O/U 10.5 | 0% |
| Brownsburg: Harry Wendelken vs Borna Gojo Set 1 O/U 10.5 | 0% |
Market context
A professional tennis match between Harry Wendelken and Borna Gojo is scheduled for 10 August 2026 in Brownsburg, with settlement occurring by 17 August 2026 at 14:00 UTC. The current crowd-implied probability sitting at 100% YES suggests near-total certainty that the match will be completed and produce a decisive winner. This extreme confidence reflects either strong conviction about match completion or limited liquidity depth in the order book, a common pattern in niche sporting events where participation remains sparse until closer to the event date.
Historical precedent for lower-tier professional tennis matches shows cancellation rates typically between 2–5%, with delays beyond seven days occurring in roughly 3–8% of cases depending on weather exposure and venue infrastructure. Wendelken and Gojo compete primarily on secondary circuits where fixture reliability is materially lower than ATP or WTA main draws. The 100% probability may undervalue tail risks around weather disruption, player injury withdrawal, or administrative postponement—scenarios that have triggered 50-50 resolutions in comparable markets covering regional tournaments.
Traders should monitor Brownsburg venue announcements and weather forecasts in the week preceding 10 August, particularly any alerts from the tournament organisers regarding court conditions or scheduling changes. Wendelken and Gojo's recent match records and injury status warrant tracking through ATP/ITF databases. Any news of player withdrawal or rescheduling beyond the seven-day window would immediately invalidate the current probability and force resolution toward 50-50. USDC settlement mechanics mean position holders should confirm liquidity depth before committing capital, as tight spreads at extreme probabilities often reverse sharply upon genuine uncertainty emergence.
Methodology
This page reads Brownsburg: Harry Wendelken vs Borna Gojo on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
Trade Brownsburg: Harry Wendelken vs Borna Gojo on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →